Thread conducting device for sewing machines



April 5, 193% J, v. GONZALEZ THREAD CONDUCTING DEVICE FOR SEWINGMACHINES Filed March 51, 1950 NVENTOR 2 Sheets-Sheet l ATTORNEY April 5,1932.

J. V. GONZALEZ THREAD CONDUCTING DEVICE FOR SEWING MACHINES Filed March51, 1950 2 Sheets-Sheet 2- Zyalfimuakuz J h vtliit? INVENTOR ATTORNEYPatented Apr.- 5,? .1932

JOSEPH VIDAL GONZALEZ, or MAYAGU Z, Poniro n Ioo THREAD vcoitnuornrenavron non SEWING- MACHINES Application filed. March 31,

This invention relates tothread storing and conducting devices forsewingmachines and more particularly to a thread storing; and conductingdevice for use in connection with 5 industrial sewing imachines asdistinguished fromthose intended primarily for home use, and theinvention has asone of its objects to provide a device for this purpose,by which thread may be conducted tothe needle of a sewing machine from abobbin of'thread so that, where the device is installed upon sewingmachines in factories, where clothing and other fabric products aremade, a greater quantity of thread may be stored for use than ispossible with the ordinary machine employing a bobbin and, furthermore,the time which is ordinarily consumed in winding a bobbin on an ordinarysewingmachine, may be employed in continued sewing.

Another objectof the invention is to pro-' vide a'thread conductingdevice for sewing machines, embodying means whereby two bobbins ofthread may be stored, ready for the use of thread from either bobbin, sothat where it is required to use thread of one color for a period oftime and then athread of another color or a .difierent character, thismaybe done without removing a bobbin such as the ordinary bobbin,thereby necessitating only a rethreading of the sewing machine needle inorder to eii'ect the change in thread; I

Another object of the invention is to provide a device of the classdescribed, which is 'machine needle than where an ordinary smallshuttleand spool of thread are employed as in th'e'case of the ordinary sewingnachine' for household use. v

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts to behereinafter fully,describedgillus- I trated .in the accompanyingdrawings, and

especially designed for industrial or factory 1 use in that itcontemplates the provision of 1930. Serial" No. 440,587;

specifically pointed out in the appended claim I v V In describing myinventionin detail,-reference will be had to the accompanying drawings,wherein like characters denote like, or corresponding parts throughoutthe sev eral views, and in which V Figure l is a View in front elevationillus-. trating two sewing machines connected for operation in unisonand equipped with the device of the present invention, and in whichembodiment of the invention, the bobbin con-' tainers or housings areconcealed from'viewt; Figure 2 is a sectional view on the line 2-2 a ofFigure 1, looking in the direction indicated by the arrows; v Figure 3is a View similar to Figure 1, il lustrating a modified form of theinvention in whichthevbobbin containers are located" upon the tops ofthe machines. I

Figure l is avertical sectional View on theline H of Figure 8, lookingin the, di-f rection indicated by the arrows;

Figure 5 is a'detail viewin front elevation of one of 'the bobbincontainers or holders, and illustrating the manner in which; thread maybe led in diiferent directions from two bobbin compartments.

Figure'G is a view in side elevation of the device of Figure 5. l IFigure 7 'is a top plan View thereof. Figure 8 is a horizontal sectionalview on theline 8 8 of Figure 5. l Figure 9r'is a'vertical sectionalviewon' the -line-99-of Figure 6. v v

Figure 10 is a detail View illustratin one i of the thread conductingvconduits ofthe device. a w Figure ll is a vertical transverse sectionalview on the-line '1l+11 jofFigure '10, look'- ing inthe' directionindicated bythe arrowsg Figure 12 is a similar viewonthe line: 12.12 ofFigureli), looking in the direction indicatedby the arrows The stands ofsewing machines equipped with the invention may be of the standardtypeemployed in factories and, in practice, the machines may be connected ina row to provide for" simultaneous application of power thereto,and eachmachine willlinclude;

the usual top indicated by the numeral 1 and head 2 in which the needlebar 3 is mounted for vertical reciprocation and, in place of the usualcombined hand and fly wheel of the ordinary sewing machine, a pulley 4is employed and a belt 5 is trained over this pulley and over anotherpulley 6 upon a shaft 7 which may be common to two or more of themachines, and which shaft may be operated from a driven shaft 8 by apulley belt driven as shown in the drawings, and the said shaft 8 drivenfrom any suitable source of power supply, a foot pedal 9 being mountedbeneath each machine and constituting means for controlling a clutch 10so that by exerting pressure upon the pedal, power may be transmittedfrom the shaft 8 to the pulley l of the machine.

The above is of course the usual practice except that the sewingmachines usually employed, embody the usual mechanism common tohousehold sewing machines. In the embodiment of the invention shown inFigures 1 and 2 of the drawings, a casing 11 is mounted beneath the top1 of the sewing machine and preferably by means securing it to the framestructure which supports the said top, and the top is provided with anopening 12 which is in suostantial registration with an opening 13formed in the top of the casing. Where the casing is to contain twobobbins, the bobbins, indicated by the numeral 14, will be arrangedwithin. compartments formed by a partition wall within the casing, anddoors 15 will be hinged to the front or side of the casing, and providedwith glass panes 16 through which the bobbins of thread may be readilyobserved, and the quantity of thread remaining readily determined.

The invention contemplates the direct feeding of the thread from thebobbin to the needle at the lower end of the needle bar 3, and in orderthat the thread may be conducted with accuracy, a tubular conduit 17 isarranged at one end portion upon the top of the sewing machine, in theembodiment shown in Figures 1 and 2 of the drawings, and with its end inclose proximity to the opening 12 in said top, and is then led upwardlyas indicated by the numeral 18 beside the pulley 4, and thencehorizontally as at 19 above the head of the sewing machine, and to apoint vertically in alinement with the needle bar 3, the thread beingled from this end of the conduit directly to the needle and bein placedunder suitable tension due to the size of the bobbin, and the contact ofthe thread with the conduit.

The end of the portion 17 of the conduit is arranged to receive a threadtaken from the bobbin in one of the compartments 14 and another conduit,indicated by the numeral 20 will be arranged upon the top of the sewingmachine and with one end thereof in uxtaposition to the opening 12 whichcommunicates with the other compartment 14 so that thread may be ledthrough this conduit 20.

The embodiment of the invention shown in Figures 3 to 9 inclusive isidentical with the embodiment shown in Figures 1 and 2 except that thecasing 11 for the bobbins is mounted upon the upper side of the top 1 ofthe sewing machine instead beneath the top. Likewise, the conduit 21 is,in this embodiment, led across the top of the casing, and thencedownwardly as indicated by the numeral 20a, and therefore the parts inthese figures which correspond to parts in Figures 1 and 2, areindicated by the corresponding reference numerals, primed.

In this latter embodiment of the invention, as well as in the embodimentshown in Fig ures 1 and 2, the conduit through which the thread is ledfrom the bobbin, is formed in two sections, one indicated by the numeral21 and comprising the main section, and a flat section 22, whichconstitutes a cover or closure section, these sections being hingedlyconnected as dicated by the numeral 23, and springs b ng arranged uponthe pinties 25 of the hi1 23 to yieldably hold the sections 22 in 010ition, it being understood that by actu is a pring finger latch 26,mounted upon the section 22, and engageable with a keeper 2?, thesection 22 may be swung to open posi 'on, against the tension, of thespring to p nit of the thread being led longitudinall ;v the section 21,thus greatly facilitating leading of the thread from the bobbin to theneedle bar of the sewing machine.

lVhat I claim is A thread conducting ceviee for sewing machinescomprising a casing adapted to be supported by the machine, means withinthe easing for supporting a bobbin of thread, a conduit mounted upon thecasing and adapted to lead the thread from the bobbin toward the needlebar of the machine, aid conduit being open at its side and a springpressed cover section hinged thr ugh the conduitand adapted to closeover the open side thereof.

In testimony whereof I ailir: my signature.

JOSEPH VIDAL GONZALEZ.

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